HttpApplication.LogRequest Událost

Definice

Obor názvů:

System.Web

Sestavení:

System.Web.dll

Nastane těsně před ASP.NET provede jakékoli protokolování pro aktuální požadavek.

public:
 event EventHandler ^ LogRequest;

public event EventHandler LogRequest;

member this.LogRequest : EventHandler 

Public Custom Event LogRequest As EventHandler 

Event Type

EventHandler

Příklady

Následující příklad ukazuje, jak poskytnout obslužnou rutinu LogRequest události pro událost. Obslužná rutina události také zpracovává několik dalších událostí. Proto se CurrentNotificationIsPostNotification vlastnosti používají k určení kódu, který se má spustit.

using System;
using System.Data;
using System.Web;
using System.Web.Security;
using System.Web.UI;

// Module that demonstrates one event handler for several events.
namespace Samples
{
    public class ModuleExampleTestCS : IHttpModule
    {
        public ModuleExampleTestCS()
        {
            // Constructor
        }
        public void Init(HttpApplication app)
        {
            app.AuthenticateRequest += new EventHandler(App_Handler);
            app.PostAuthenticateRequest += new EventHandler(App_Handler);
            app.LogRequest += new EventHandler(App_Handler);
            app.PostLogRequest += new EventHandler(App_Handler);
        }
        public void Dispose()
        {
        }
        // One handler for AuthenticationRequest, PostAuthenticateRequest,
    // LogRequest, and PostLogRequest events
        public void App_Handler(object source, EventArgs e)
        {
            HttpApplication app = (HttpApplication)source;
            HttpContext context = app.Context;

            if (context.CurrentNotification == RequestNotification.AuthenticateRequest)
            {

                if (!context.IsPostNotification)
                {
                    // Put code here that is invoked when the AuthenticateRequest event is raised.
                }
                else
                {
                    // PostAuthenticateRequest 
                    // Put code here that runs after the AuthenticateRequest event completes.
                }
            }
            if (context.CurrentNotification == RequestNotification.LogRequest)
            {
                if (!context.IsPostNotification)
                {
                    // Put code here that is invoked when the LogRequest event is raised.
                }
                else
                {
                    // PostLogRequest
                    // Put code here that runs after the LogRequest event completes.
                }
            }
        }
    }
}

Imports System.Data
Imports System.Web
Imports System.Web.Security
Imports System.Web.UI

' Module that demonstrates one event handler for several events.
Namespace Samples

    Public Class ModuleExampleTestVB
        Implements IHttpModule

        Public Sub New()
            ' Constructor
        End Sub

        Public Sub Init(ByVal app As HttpApplication) Implements IHttpModule.Init
            AddHandler app.AuthenticateRequest, AddressOf Me.App_Handler
            AddHandler app.PostAuthenticateRequest, AddressOf Me.App_Handler
            AddHandler app.LogRequest, AddressOf Me.App_Handler
            AddHandler app.PostLogRequest, AddressOf Me.App_Handler
        End Sub

        Public Sub Dispose() Implements IHttpModule.Dispose
        End Sub

        ' One handler for AuthenticationRequest, PostAuthenticateRequest,
    ' LogRequest, and PostLogRequest events
        Public Sub App_Handler(ByVal source As Object, ByVal e As EventArgs)
            Dim app As HttpApplication = CType(source, HttpApplication)
            Dim context As HttpContext = app.Context

            If (context.CurrentNotification = RequestNotification.AuthenticateRequest) Then

                If Not (context.IsPostNotification) Then

                    ' Put code here that is invoked when the AuthenticateRequest event is raised.
                Else

                    ' PostAuthenticateRequest 
                    ' Put code here that runs after the AuthenticateRequest event completes.

                End If
            End If

            If (context.CurrentNotification = RequestNotification.LogRequest) Then

                If Not (context.IsPostNotification) Then

                    ' Put code here that is invoked when the LogRequest event is raised.

                Else
                    ' PostLogRequest
                    ' Put code here that runs after the LogRequest event completes.

                End If
            End If
        End Sub
    End Class

End Namespace

Poznámky

Událost LogRequest se vyvolá i v případě, že dojde k chybě. Pro událost můžete zadat obslužnou rutinu LogRequest události, která poskytne vlastní protokolování požadavku.

Další informace o zpracování událostí naleznete v tématu Zpracování a vyvolávání událostí.

LogRequest je zaveden v rozhraní .NET Framework verze 3.5. Další informace naleznete v tématu Verze a závislosti.

Viz také

• PostLogRequest